Ever wondered why your car's heat pump can be so noisy? It's all about the refrigerant inside. When it changes from liquid to gas, it creates tiny bubbles that pop, making that annoying sound. This happens because of a sudden drop in pressure. Scientists have been studying this. They found that the
Pigs can get really sick from a virus called PEV-G. It causes problems like diarrhea, brain swelling, trouble breathing, and even issues with reproduction. Normally, finding this virus takes a lot of time and special tools. But now, there are new ways to detect it quickly and easily. Two new method
People in the U. S. have mixed feelings about their country. Some are proud, while others feel disappointed. Many love the freedoms and opportunities America offers, but they also see problems. As the country celebrates its 250th birthday, people are sharing their thoughts on what it means to be Ame
Plastic waste is a big problem. Sorting it correctly is super important for recycling to work well. Right now, most systems use fancy cameras or big computers that aren't very flexible. This makes recycling expensive and not very good at handling different types of plastic. A new study looked at a
In the world of medicine, molecules can be tricky. Some look almost the same but behave very differently. This is especially true for chiral molecules, which are like mirror images of each other. One version can be helpful, while the other might be harmful. So, finding a good way to separate them is
There's a big difference in how often Black Americans and White Americans use epidurals during childbirth. Black Americans are much less likely to choose this pain relief option. Why is this happening? First, let's talk about trust. Many Black Americans have good reasons to be wary of the medical s
Knee injuries in children can be serious, especially when they involve the anterior cruciate ligament (ACL). The challenge is that kids are still growing, and surgery near the growth plates can have lasting effects. Two main approaches exist for ACL repair in youngsters: physeal sparing and non-phys
Dementia is becoming more common, and it's a big worry. Scientists have found that about 45% of dementia cases could be avoided if people changed certain habits. This is where the European project LETHE comes in. It's all about creating a digital tool to help people manage their risk factors and kee
Knee implants are a big deal. They help people walk again. But there's a tricky part: the stem. It's like the root of the implant. It goes into the bone. There are two types: cemented and press-fit. Cemented stems are like glue. They hold the implant in place right away. But they don't let the bone
In the vast landscapes of Patagonia, a single grave tells a story of health and hardship from the 18th and 19th centuries. This grave belonged to an Indigenous person who lived during a time when their community interacted with European settlers. Scientists wanted to know more about the health of th
